--- /dev/null
+.TH Concept "Hvy-Plastic"
+.NA Hvy-Plastic "Special rules for Hvy Plastic 3"
+.LV Basic
+.s1
+Ship types are customized. Better check show for the details.
+.s1
+Dreadnoughts are more heavily armored. Frigates are more fragile.
+.s1
+Land unit types are heavily customized. Better check show for the
+details. Non-mechanized units are slower and more vulnerable,
+artillery firing ranges differ, few units are light (but troop
+transports and landing ships can carry non-light units).
+.s1
+Planes are tweaked somewhat. show is your friend.
+.s1
+Heavy bombers can drop seamines. Anti-sub planes can't.
+.s1
+Nukes are on sale, but nuclear plants are not. Did I mention the show
+command?
+.s1
+Infrastructure is disabled.
+.s1
+Fortresses cost maintenance, like capitals.
+.s1
+Your refineries make less petrol from each barrel of oil than usual.
+.s1
+Natural resources gold, oil and uran deplete much slower than usual.
+A 100% gold resource contains 2500d, a 100% oil resource contains
+2500o, and a 100% uranium resource contains 500u. Fully depleting a
+sector will take you several updates, and a small fraction of the
+resource contents will be lost.
+.s1
+Gold in mountains does not deplete at all.
+.s1
+Oil production does not depend on tech; you don't have to micro-manage
+to conserve oil.
+.s1
+Server time is in UTC, which means there will be no daylight savings
+time.
+.s1
+Missed updates due to server problems will be forced if caught within
+15 minutes of planned update time or skipped otherwise.
+.s1
+Everything you do in this game is logged by the deities for their own
+nefarious purposes. However, the logs are treated confidentially.
+.s1
+Make the deity laugh and get up to 5 gold bars.
+.s1
+Source code and configuration is available from
+.br
+http://www.pond.sub.org/~armbru/empire/hvy-plastic-3/
+.s1
+.SA "Introduction, Server, show"